<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<script src="https://cdn.bootcdn.net/ajax/libs/vue/2.6.9/vue.js"></script>
<body>
    <div id="app">
        <!-- 值绑定 -->
        <!-- true false 默认-->
        <input type="checkbox" name="" id="" v-model="checkbox_info" true-value="yes" false-value="no">
        <p>{{checkbox_info}}</p>
        <!-- 单选框 -->
        <input type="radio" name="" id="" :value="sex_value" v-model="sex">
        <!-- 下拉列表 -->
        <select name="" id="" v-model='selected'>
            <option value="" disabled>请选择</option>
            <option :value="name">{{name}}</option>
        </select>
        <p>{{selected}}</p>
    </div>
    <script>
        let vm = new Vue({
            el: "#app",
            data: {
                checkbox_info: '',
                sex_value: 'boy',
                sex: '',
                name: 'wang',
                selected: ''
            }
        })
    </script>
</body>
</html>